Patents Assigned to Bennett Engineers and Associates of Austin Colorado
  • Process for production of low temperature char during production of low temperature tars
    Patent number: 7909896
    Abstract: An improved process for the production of smokeless (low CO2—CO emitting) boiler fuels which have been obtained by careful temperature control and the addition of waste, trash or other carbonaceous material during carbonization of various coal materials such as tar sands, bituminous coal, peat lignite, and oil shale.
    Type: Grant
    Filed: November 27, 2001
    Date of Patent: March 22, 2011
    Assignee: Bennett Engineers and Associates of Austin Colorado
    Inventor: Harold L. Bennett